Web-winding machine



May 15, 1928.

N. MARCALUS El" AL WEB WINDING MACHINE Filed Jan.l9, 1925 Sheets-Sheet 1MQATTQRNEYS May 15, 1928.

N. MARCALUS ET AL WEB WINDING MACHINE Filed Jan. 19, 1925 7 Sheets-Sheet2 w X/q'ATTORNEYS May 15, 1928. 1,669,832 N. MARc Lus ET AL WEB WINDINGMACHINE Filed Jan.l9, 1925 7 Sheets-Sheet 5 mv TOR 0y r 372 .l IWrroanavs q May 15, 1928.

N. MARCALUS Er AL WEB WINDING MACHINE Filed Jan. 19, '1925 7Sheets-Sheet 4 MQATIORNEYD' May 15, 1928. 1,669,832

N. MARCALUS ET AL WEB WINDING MACHINE Filed Jan.l9, 1925 7 Sheets-Sheet6 May 15, 1928.

N. MARCALUS EI'AL o WEB WINDING MACHINE Filed Jan. 19,. 1925Sheets-Sheet 7 Patented May 15, 1928.

UNITED STATES incnoLAs macamrs AND PATENT OFFICE.

ROSWELL H. RAUSCH, OF PLAINFIELD, NEW JERSEY, AS-

SIGNORS TO AUTOMATIC PAPER MACHINERY (10., INQ, OF NEWARK, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

WEB-WINDING MACHINE.

Application filed January 19, 1925. Serial No, 3,241.

This invention relates to web-winding machines.

In copending applications Serial Nos. 624,357 and 758,342, filed by oneof the present joint inventors, machines are disclosed in which sheetmaterial is unwound from a parent roll, slit into strips of the desiredwidth, wound upon tubes or cores fed to the machine, cut to the desiredlength, wrapped, glued and discharged; all of these operations takingplace automatically and continuing as long as any material remains uponthe parent roll, and wrappers and cores are forthcoming. In order toperform these operations, the machines are provided with three sets ofrollers which are automatically rotated in predetermined sequentialcombinations. One set, the winding and wrapping rollers hold and rotatethe core and wind the material about it, slitting the material intosheets of appropriate widths at the same time. I second set, the feedingrollers, feed the material to the core from the parent roll andcooperate with a perforator to perforate it at intervals. /Vhen thedesired length of material has been, wound about the core, the feedingrollers stop while the winding rollers continue to rotate. This tearsthe material along a perforation and separates the wound roll from theweb. Thereupon a third set of rollers, the wrapper rollers, feed awrapper to the winding rollers and automatically apply glue to it. \Vhenthe wound roll has been wrapped the wrapper is automatically cut fromthe wrapper web, the wrapper rollers stop, and the winding rollerscontinue to rotate long enough to tighten the wrapper about the roll andinsure the ad- 'hcsion of the glue. T hereupon the winding rollersseparate to discharge the wound, wrapped and slit.rolls. and a new coreis fed into place. These operations are then repeated. In order thatthis sequence of operations may be carried out automatically themachines are provided with means for directing properly timed air jetsagainst the oncoming end of the web to guide it about the core at theinitiation of each winding action. These three sets of rollers, thefeeding, winding and wrapper feed, are

operated in their sequential relations by means of three gear trainseach controlling the rotation of a given set of rollers. These geartrains are thrown into and out of connection with a constant source ofpower in properly timed relation by means of a constantly rotating camdrum. This drum is also designed to control the core feed, the rolldischarge mechanism, the perforator and the air jets.

The cores about which the rolls of these prior machines are wound areusually of cardboard and remain in the wound roll. This, of course,necessitates a constant supply of cores which adds expense and alsoinvolves the use of mechanism for feeding,

scoring, holding and centering these cores. It is one of the objects ofthe present invention to design a web-winding machine which does not usecores which remain in .the wound rolls, but which is equipped with apermanent spindle or mandrel about which successive rolls are wound andfrom which they are stripped. This spindle is mounted for axial traverseinto and out of winding position, the outward traverse stripping thewound roll.

The machines of these prior applications are of the surface windingtype, that is the winding power is applied by the winding rollers uponthe surface of the roll being wound. It is a.further object of thepresent invention to design an improved winding machine of the centerwinding type, that is a machine in which the winding power is appliedthrough the core or spindle about which the roll is wound, but which,like the surface winding machines of the prior applications shall beautomatic in its operation. The present machine does, in fact, embodymany of the features of the earlier machines, notably the feedingrollers, the perforating knife, the wrapper rollers and the discharge,but it embodies an essentially different and improved winding mechanism.

Although it would be quite possible to provide separate means fortraversing and rotating the spindle, we have provided, in accordancewith the present invention,traversing and rotating means having manyelements in common. These means comprise a series wound motor driving agear which makes threaded engagement with a threaded outer end of thespindle and causes it to traverse in the direction of its length. \Vhenthe spindle reaches winding'position between the now idling windingrollers farther longitudinal movement is arrested and it is then erforcerotated by the same gear which be ore caused it to traverse, the threadacting as a key. After the roll is wound and Wrapped the withdrawing orstripping traverse is effected by reversing the direction of rotation ofthe spindle. This is done by changing the direction of the currentthrough the armature of the motor while leaving the current through theseries field unchanged.

The spindle proper is provided with a longitudinal slot extending itsentire length and through which the forward end of the web is threadedto initiate the winding action, thus eliminating the necessity for airjets for directing the oncoming web about the core. It therefore becomesnecessary that the spindle always be arrested in such a position thatthe slot shall be in alignment with the oncoming Web and thus receiveit. To do this we have equipped the spindledriving motor with anauxiliary shunt field. which is energized and the armaturesimultaneously short-circuited through the series field at the propertime, thus applying a dynamic brake to the motor and momentarily holdingthe spindle fast. The actuating of this dynamic brake is automaticallytimed to correspond with the correct position of the spindle slot. Themeans for a plying this dynamic brake and the means or reversing thespindle driving motor are controlled by a cam on the shaft of the maincam drum.

In order to guide the forward end of the web from the feedin rollersover the first winding roller and t rough the slot in the spindle, wehave provided a series of guide fingers which are moved at the propertime through grooves in the first winding roller and into the spindleslot. Before rotation of the spindle starts, these fingers areautomatically withdrawn through the action of a cam on the cam drum.

In any web-winding machine it is very important to always maintain aconstant tension on the web so that the rolls will be properly wound. Inrior web-winding machines of the center rive type the spindle is drivenby a friction mechanism which is supposed to slip at a constant torque.However, as the roll increases in size, the torque put on the driveshaft must increase proportionally if the tension on the web is toremain the same. In all existing machines this torque is increased bythe operate; by hand. This requires constant attention an if theoperator is to maintain constant tension on the web, he must continuallytighten up on the friction device to constantly increase the torque onthe winding spindle. In actual practice this is not done and theoperator tightens up the friction intermittently; consequently thetension on the web is not maintained constant and the roll is not woundperfectly. In accordance with the present invention we have providedmeans for automatically increasing the torque on the spindle drivingmotor as the roll increases in diameter. These means comprise a contactarm which is moved by the growing roll to progressively throw outresistance in series with the field and armature of the motor and thusincrease its driving torque.

In the accompanying drawings we have illustrated a preferred form ofmachine embodying the improvements of the present invention, a study ofwhich will make clear the principles involved. In these drawings,

Figure 1 is an end view partly in section of a machine constructed inaccordance with the present invention and showing the general relationof the parts,

Figure 2 is a side elevation of the machine with parts broken awayshowing in particular the means for traversing and rotating the spindle,

Figure 3 is a transverse section through the machine showing somewhatdiagrammatically the relation among the parent rolls, the variousrollers and the discharge. In Figure 3 the wound roll is shown indischarged position and a second roll held between the winding rollersbut about ready to be discharged,

Figure 4 is a view similar to Figure 3 showing the rollers and spindleon somewhat larger scale. In this figure the arts are shown in positionjust beforewindin initated with the web guide fingers exten ing into theslot in the spindle,

Figure 5 is a transverse section taken along line 55 of Figure 2 showingin detail the various operating mechanisms,

Figure 6 is a longitudinal section through the gear housing taken alongline (y-6 of Figure 5,

Figure 7 is a detailed side view of the control segment which controlsthe o eration of the spindle driving motor showing this segment inrelation to the cam which operates it, and

Figure 8 is a diagrammatic layout showing a development of the contactson the face of the control segment the wiring for the dynamic brake andthe manner in which the swinging contact arm controlled b the rollthrows out resistance to increase t e torque of the driving motor.Manual means of varying this torque is also shown.

In describing the construction and o eration of the machine illustratedin these rawings, we shall first describe briefly the genis v:

Lil

cral functions of the various feeding winding. wrapping, cutting anddischarge elements without specific reference to their operatingmechanism. \Ve shall then describe the various operating mechanisms withparticular emphasis on the spindle control features.

General functions, Figs. 2, J) and J}.

The parent roll containing the web of material which is to be unwoundand wound again about cores into a series of smaller rolls, is mountedat the side of the machine and is indicated by reference numeral 1. Thewrappers for the wound rolls are supplied from a series of staggeredwrapper parent rolls 2 mounted upon the'top of the machine. There arethree main sets of rollers, the feeding rollers 5, 6 and 7, the windingrollers, 8. 9 and 10, and the wrapper feeding and gluing rollers 11, 12.13 and 14, all of which extend the entire width of the machine and,except for the winding rollers, are positively driven. The idlingwinding rollers, receive the spindle 3 and bear against the surface ofthe roll during winding and wrapping. The feeding rollers feed the Webfrom the parent roll to the winding rollers, slit it longitudinally andcooperate with other means to perforate it transversely. These rollersoperate only during the winding action and are stationary duringwrapping. The wrapper rollers feed the wrappers to the wound roll heldbetween the winding rollers, apply glue to them and cooperate with meansfor severing them transversely into appropriate lengths. These rollersare stationary for the major part of the operation and rotate onlyduring the wrapper feed. We shall now describe these three sets ofrollers and their associated parts starting witlrthe feeding rollers.

The functions of the feeding rollers are to feed. slit and perforate theweb. A series of spaced annular slitting knives 15 are mounted adjacentthe roller 6 and cooperate with similarly spaced annular grooves 16 inthe face of the feeding roller (3 to slit the web as it is fed betweenthem into strips the width of which is equal to the length of the unitrolls. Mounted above the feeding roller 6 is a shaft 17 to which isaffixed a perforating knife 18. This shaft 17 and the knife 18 aredesigned to make a single revolution when the desired length of web hasbeen wound. cooperating with a longitudinal slot 19 in the face of theroller 6 to perforate the web transversely.

The function of the winding rollers is to bear against the roll beingwound and wrapped thus insuring a tight evenly wound roll, to supportthe wrapped roll after the spindle has been withdrawn, and discharge itfrom the machine. Of these three winding rollers, 8 and 10 are fixed;roller 9, however, is mounted upon arms fixed to a shaft 26 for swingingmovement about the axis of that shaft so that as the diameter of thewound roll increases. room is automatically made for it between theroller J and the stationary rollers 8 and 10. A spring 27 secured to ahandle extension :28 on one of the arms 25 constantly urges the roller 9upward toward the rollers 8 and It], thus tending to wind a tight roll.\Vhcn a roll has been wound and wrapped and the spindle withdrawn, theroller 0 is swung downward and the wrapped roll permitted to fall out ofthe machine by gravity, being directed in this movement by a guide apron29.

The function of the wrapper feeding rollers is to feed the wrapper tothe wound roll, apply glue to it and sever it transversely into units ofthe proper length. The gluing is performed by means of the roller 14which is provided at suitable intervals with sections of reduceddiameters, each of which carries an eccentric 41. These eccentrics aremachined so that for about onethird of their circumference they are ofthe same diameter as the roller 14 and have faces which lie in the samecylindrical surface. The eccentric portions 41 are mounted to dip intoindividual glue troughs 42. Thus, as the roller 14 rotates, it applies aseries of spaced stripes of glue upon the wrapper, the length of eachstripe being equal to the length of that portion of the eccentric 41which contacts with the wrapper.

A shaft 44 carrying a. knife 45, is mounted adjacent the roller 12 andis adapted to cooperate with a slot 46 in the roller 1*). to sever thewrapper web so that a predetermined length of wrapper is employed foreach wrapping operation.

The cores of our prior machines are replaced here by the permanentspindle 3 journalcd within two swinging arms 31 and 3'). having bearings33 and 34 respectively. The spindle is provided with a longitudinal slot4 extending the entire length of the spindle proper and designed toreceive the forward end of the web as shown in Figure 4. The web isdirected through this slot by means of a series of guide lingers 49extending through annular grooves .30 in winding roller 8 and intp theslot. These guides are mounted upon an oscillatable shaft 51 which isturned to withdraw them from the slot just before the winding begins.The spindle is traversed at the termination of the winding and wrappingand stripped of the roll by the arm 32. A slight taper 011 the spindlefacilitates this withdrawal.

\Ve shall now briefly review the entire sequence of operations describedabove. Figure 4 represents the relative positions of the various rollsand the spindle just previous to the initiation of the winding action.The guide fingers 49are shown pro'ecting into the slot 4 of the spindleand t e forward end of the main web extends over these guides andthrough the slot. The shaft 51 is now oscillated withdrawing the guidefingers 49 and the rotation of the spindle begun. The projecting end ofthe web is bent backward by the roll 10 and after one revolution issecurely held between the spindle and the second lap of the web. Thewinding now continues until the roll has assumed the desired size whenthe shaft 17 and its perforating knife '18 are given a single rotationperforating the web. \Vhen the perforation reaches a position betweenroller 7 and guide fingers 49, the feedin rollers are suddenly stoppedwhile the spindle continues to rotate thus detaching the wound roll fromthe web along the perforations. At this moment, however, and before thesevered end of the web has been wound about the roll the wrapper feedingrollers are started and the forward end of the wrapper interposedbetween the tail of the web and the roll, thus pinching it in placeandmaking unnecessary the use of glue at this point to insure that thewrapper follow the roll. The glue stripes are applied to the wrapper bymeans of the roller 14 and cause the rear end of the wra per to adhereto the roll. Meanwhile sha t 44 has been rotated, thereby severing thewrapper by means of knife 45. The wrapper feeding rollers are then stoped and the spindle continues long enou h to ti hten the wrapper aboutthe wound roll. Tile spindle is thereupon traversed outwardly and thewound and wrapped roll being held axially fixed by means of the arm 32,is stripped. The roller 9 is thereupon swun downward and the wound,wrapped an glued roll discharged from the machine rolling down apron 29.The discharged roll is made up of a series of unit rolls end to end andheld temporarily together by means of the overlapping wrappers. It is asimple matter to separate the roll into its units and the extendingwrappers can then be turned in and secured by means of a glued disk orotherwise.

Web and wrapper feed control, Figures 1, 2, 5 and 6.

Vs shall now describe the mechanism which operates the above-describedparts in their sequential relations, starting first with the main weband wrapper feed control. As the main web and wrapper feed mechanismsare identical with the ones illustrated, described and claimed in myco-pending application No. 758,342, and as none of the 1mprovements ofthe present invention relates directly to them, we shall describe themhere only briefly. The various rollers and their associated parts are soported by and journaled within two end rames and 81, the frame 80comprising a housing for the major art of the operating mechanism. Poweris supplied by a driving motor 70 rovided with a pinion 82 on its shaftwhic meshes with a gear 83 keyed to a shaft 84 which constitutes themain drive shaft for the machine. Keyed to this shaft 84 is a bevelpinion 85 which meshes with a similar bevel pinion 86 keyed to a shaft87 of a worm 88. This worm 88 engages a worm wheel 89 on a cam drum 90mounted upon a shaft 91. This cam drum is constantly rotated throughoutthe entire cycle of operations and controls all of the sequentialoperations of the various parts of the machine.

The feeding rollers are driven throu h a pinion 97 loosely mounted ondriving s aft 84 but which can be made to rotate therewith throughoperation of a sliding clutch sleeve 98 actuated at the proper times bylevers 134, 136 and 138 which are controlled by the cam drum. Thispinion 97 meshes with a gear 99 on the shaft of feeding roller 6. At theother end of this shaft and carried by the frame 81 is another gear, notshown, which meshes with pinions (not shown) on the shafts of feedingrollers 5 and 7, respectively. Thus, feeding roller 6 drives itscompanion feeding rollers 5 and 7.

The wrapper feeding rollers are driven through a pinion 104 keyed to thedriving shaft 84. This pinion 104 meshes with a pinion 105 integral witha sleeve 106 loosely mounted in turn upon a sleeve 107 which is keyed toa shaft 108, an extension of the shaft of the wrapper feeding roller 11.The sleeve 107 is made to rotate with the sleeve 106 when necessary bymeans' of a rocking clutch 109 controlled by a lever 213 which is inturn controlled by the cam drum. Keyed to this sleeve 107 is a pinion110 which meshes with a pinion 118 on the shaft of the gluing wrapperroller 14, and with a pinion 111 on the shaft of wrapper feeding roller12, which inion meshes in turn with a inion 112 on t e shaft of wrapperfeeding ro ler 13. Fixed to and coaxial with the pinion 111 is amutilated pinion 113 of a eneva movement, of which the other pinion 114is keyed to the shaft 44 of the wrapper severing knife 45.

Meshing with the gear 99 is a gear 115 bearing a 1 to 1 ratio therewithand keyed upon a stub shaft 116 coaxial with the shaft 17 of the webperforating knife 18. This gear 115 rotates with the gear 99 whichdrives the feeding rollers, and, during the major part of the feedingoperation, is unconnected with the shaft 17 carrying the web rforatingknife 18. At the proper time,

owever, the shaft 17 and its knife are thrown into operativmengagementwith the gear 115 by means of a one tooth sliding clutch 117, theoperation of which is controlled by a lever 165 which is in turncontrolled by the cam drum.

The guide fingers 49 mounted upon the oscillatable shaft 51 arecontrolled by means of an arm 166 pinned to one end of the shaft 51which arm carries a roller 167 actuated by a cam 168 on the cam drum toswing the guide fingers forward and through the slot in the spindle atthe proper time. When the web has been threaded the cam 168 passes andthe weight of arm 166 causes the retraction of the guide fingers,although of course, a spring might be utilized for this purpose,

isp'imile control, Figures 1, 2, 7 and 8.

We shall now describe in detail the mechanism for traversing androtating the spindle and the various electrical controls which governits operation. Mounted upon the frame 81 is a bracket 170 which supportsan electric motor 171 which normally operates as a series wound motor. Apinion 172 on the shaft of this motor meshes with a gear 173 looselyjournalled upon a shaft 174. This gear 173 is keyed to a pinion 175coaxial therewith and likewise journalled upon the shaft 17 4, whichpinion meshes with a gear 176, the hub of which is internally threadedand receives the outer threaded end 177 of the spindle 3. This threadedend of the spindle is supported by and journaled within bearing 178 inthe lower ends of swinging arms 179 pinned to shaft 174. The arms 31 and32 which support the spindle in winding position are likewise pinnedupon the shaft 174, which shaft is journalled within the frame of themachine and the bracket 170. Thus, as the roll increases in diameter andthe arms 31 and 32 are swung outwardly, the arms 179 are free to follow.

From the foregoing description it will be obvious that the traversingmovements of the spindle are effected through rotation of the motor 171,the direction of the traverse being determined by the direction ofrotation of gear 176, which in turn is determined by rotation of themotor. The apparatus just described, however, does more than traversethe spindle. \Vhen the inner end of the spindle has entered the bearing33 in the lower end of arm 31, further longitudinal movement isprevented by means of the shoulder 181 on the spindle which abutsagainst the hub of the bearing 33. Further rotation of gear 176 in thesame direction therefore rotates the spindle, the thread of screw 177acting as a key. It is not enough, however, to traverse the spindle intowin ding position and immediately transform its longitudinal into rotarymovement. The spindle must pause long enough to permit the guide fingers49 to enter the slot 4 to permit the feeding rollers to project theforward end of the web over the guides and throu h the slot. The spindlemust also ,there ore not only pause, but pause in the correct angularposition. This is effected'by means of a dynamic brake which is appliedto the motor at the roper time, this time being when the con uctingsegment 182 of ring 183 fixed to the end of the spindle contacts withtwo brushes 184 and 185, as will be explained in detail presently.

In order, progressively and automatically, to increase the torque of themotor 171 as the roll increases in size, we have provided one of thearms 25 with a contact member 186 which swings over a series of contacts187 as the roll grows and thereby throws out resistance in series withthe motor and increases its torque.

We shall now describe in detail, with particular reference to Figures 7and 8 the electrical means which control the rotation, reversal, brakingand torque of the motor 171. This control is effected throughoscillation of a control segment 190 about the axis of a shaft 191, saidsegment having an arcuate, insulated face 192 which carries a series ofmovable contacts 193 designed to be moved into various relations witheight fixed contacts 194 on the frame of the machine which are connectedwith the motor. This segment 190 is provided with a roller 195 which isconstantly urged into contact with the periphery of a cam disk 196 bymeans of a spring 197. The configuration of this cam disk 196 which ismounted upon the shaft 91 of the cam drum, thus determines the positionof the control segment 190 and the operation of the spindle drivingmotor 171. This cam disc is provided with two cut-outs 198 and 199 theeffect of which upon the control will be described presently.

In Figure 8 we have illustrated a wiring diagram of the variouscontrols. In this diagram, 200 and 201 represent the positive andnegative leads respectively from any outside source of direct electricalcurrent; 202 the armature of the spindle driving motor; 203 the seriesfield of this motor; 204 the shunt field; 205, 206, 207, 208, 209, 210,211 and 212, the eight fixed contacts previously referred tocollectively as 194; 213, 214, 215, 216, 217, 218, 219, 220, 221, 222,223, 224, 225, 226, 227 and 228 the, movable contacts on the arcuateface of the control segment 190,. previously referred to collectively as193; 230, 231, 232, 233, 234, 235, 236, 237, 238 and 239, the contactbuttons with which the contact member 186 makes sliding contact andpreviously referred to collectively as 187; and 240, 241, 242, 243 and244 additional contacts with which the manually controlled contactmember 245 is adapted to successively contact.

In the positions of allof the control elements illustrated in Fi ures 7and 8, the roll has been wound an wrapped and the time is approachingwhen the spindle must be traversed outwardly to stri the'wound andwrapped roll. As shown, however, the motor is rotating the spindlecounter-clockwise which is the direction of rotation during winding andinward traverse. We shal trace the current from the leads 200 and 201 asfollows: 200 through resistance 239237, contact 186, resistance 240242,contact member 245, fixed contact 207, movable contacts 218, 219, fixedcontact 208, series field 203, fixed contact 210, movable contact 215,fixed contact 206, the armature 202 of the motor 171, fixed contact 209,movable contact 213, fixed contact 205 and back to the negative side ofthe line 201. In this position of the control segment, it will be notedthat the shunt ,field 204 is disconnected and the motor is, in effect,an ordinary series motor. This is the condition which obtains during theinward traverse of the spindle, and the winding. The series winding, thearmature, and the armature resistance are so proportioned that thecurrent may flow continuously even though the motor is stop ed withoutdamage to the motor. It wil be understood that as the roll has increasedin size, the movable member 186 has been swung over the contacts 187,progressively throwing out resistances from 230 to its present position237 and as these resistances are in series with the motor increasing itstorque. This torque can also be varied manually by moving contact 245.

We shall now assume that the roll has been wrapped and the time has comefor the outward traverse of the spindle. The cam disk 196 has nowrotated to the point where the roller 195 on the control segment 190drops abruptly. into cut-out 198. This 7 swings the control segmentupward and changes the relation among the series of con-' tacts 193 and194. Thus, the current now passes from the positive side of the linethrough the variable resistances, through 240-242, fixed contact 207,movable contact 221, fixed contact 208, series field 203, fixed contact210, movable contact 226, movable contact 223, fixed contact 209, thearmature 202, fixed contact 206, movable contact 217 movable contact214, fixed contact 205, and back to the negative side of the line. Thus,in this position of the control segment the current passes through theseries field in the same direction as previously, but is reversedthrough the armature, thus reversing the direction of the motor androtating the spindle in a clockwise direction, resulting in its outwardtraverse and the stripping of the wound roll. In this position too theshunt field 204 is thrown out. The lengt cut-out 198 is suflicient tocorn letel withdraw the spindle. As soon as t e wi drawthe winding rol hof the al is complete, however, and the wound and wra ped roll strippedand discharged the direction of the motor must be again reversed and theinward traverse begun. Thus, the roller 195 soon rides again up to theperiphery of the cam and the control segment is returned to the positionillustrated in the drawings and first described.

As soon as the inward traverse is complete, it is necessary momentarilyto hold the spindle fixed against rotation and in the proper position toreceive the forward end of the web. \Ve do this by means of a dynamicbrake which is applied to the motor as follows: At the roper time theroller 195 drops abruptly into cut-out 199 which is not so deep ascut-out 198; the control therefore assumes a position intermediate thetwo which have been previously described. In this osition the armature202 and the series fie d 203 are short circuited through fixed contact209, movable contact 222, movable contact 225, fixed contact 210, seriesfield 203, fixed contact 208, movable contact 220, movable contact 216and fixed contact 206. At the same time the shunt field 204 is energizedas follows starting from the ositive side of the line 200: the shuntfield 204 is energized only when the contact 228, movable contact 227,fixed contact 211, brush 185, segment 182, brush 184 and back to thenegative side of the line at 201. It will be observed, however, that theshunt field 204 is energized only when the segment 182 makes contactwith both brushes 184 and 185. The action of the dynamic brake istherefore as follows: As soon as the roller 195 drops into the cut-out199, the current to the motor is shut off. The momentum, however, wouldturn it over a few times and leave the spindle in an indeterminateangular osition, but as soon as thesegment 182 bridges the gap betweenthe brushes 184 and 185, the dynamic brake is ap lied and the driftingrotation of the spin 0 instantly checked. As the ant 182 bears adefinite predetermined re ation to the slot it is clear that the spindlewill always be stopped with the slot in the desired position.

The roll discharge, Figweq 1, 2, and 5.

The withdrawal of the spindle leaves the wound and wrapped roll suported between ers and fore a subserplient roll can be wound, it isnecessary that t e wound and wrap roll be discharged from the machine.his is automatically effected as follows: The arm 25 nearest the camdrum is provided with ofi-set extension 250 carrying a roller 251designed to be acted on by cam 253 on the cam drum. The position of thiscam 253 is so fixed that the arms 25 carrying winding roller 9 are swungdownward as soon as the spindleis with- Ill) ence to the various controlmeans.

drawn and the wound and wrapped roll thus dro ped upon the apron 29 andallowed to rol out of the machine.

0 ORGY/1.681.071-

In the concluding paragraph of the section of this specificationentitled General functions we have reviewed the entire operation of themachine, but without rIefert is believed, however, that the cooperationof these control means will be clear from the detailed individualdescriptions of them and a further general review of the operation atthis point unnecessary.

Among the several advantages which inhere in the use of the improvedmachine of the present invention, the following may be noted:

The use of cores which remain within the wound rolls is eliminated androlls wound upon a permanent spindle which is withdrawn at thetermination of each winding action. The machine, nevertheless, remainsentirely automatic in its operation.

The machine is of theceutcr winding type, and yet wholly automatic inits winding, slitting, perforating, wrapping, gluing and dischargeoperations.

Automatic means are provided for traversing the spindle into and out ofwinding position.

The same mechanism which traverses the spindle cooperates with a stop toconvert the longitudinal into rotary movement.

The web is threaded through a slot in the spindle so that separate meansfor causing the web to follow the. spindle at the initiation of thewinding action are unnecessary.

Automatic control means are provided for reversing the direction oftraverse of the spindle. This is accomplished by driving the spindlethrough a series wound motor and reversing the current through thearmature while permitting the current through the series field to remainunchanged.

A dynamic brake is provided for momentarily arresting the spindle withits slot in the proper position to receive the forward end of the web.

The torque of the spindle driving motor is automatically increased asthe roll in-, creases in size by throwing out resistance in series withit.

The entire sequence of operations is automatic and the only manual labornecessary is the mounting of the parent rolls, the separation of thewound and individually wrapped unit rolls as they are discharged fromthe machine, and the crimping of the wrapper ends.

We claim:

1. In a web-winding machine be combination of a spindle about which theweb is wound, means for directly rotating the spindle throughout thewinding operation, a fixed roller contacting with the roll duringwinding, and a transversely movable support for the spindle.

2. In a web-winding machine the combination of a spindle about which theweb is wound, a screw for traversing the spindle longitudinally intowinding position, means for arresting the traversing movement wherebythe traversing movement is transformed into a rotary winding movement,and means for reversing the direction of rotation to withdraw thespindle.

3. In a web-winding machine the combination of a spindle about which theweb is wound, a screw on the outer end of the spindle, an axially fixedgear making threaded engagement with the screw, means for rotating thegear to traverse the screw and spindle into winding position and torotate the spindle when in winding position, and means for reversing therotation of the gear to withdraw the spindle and strip the wound roll.

4. In a web-winding machine the combination of a spindle about which theweb is wound. a screw on the outer end of the spindle, an axially fixedgear making threaded engagement with the screw, means for rotating thegear totraverse the screw and spindle into winding position, means forarresting the traversing movement of the spindle whereby the spindle isrotated to wind a roll, and means for reversing the rotation of the gearto withdraw the spindle and strip the wound roll.

5. In a web-winding machine the combination of a spindle about which thewebwound, a screw on the outer end of the spindle. an axially fixed gearmaking threaded engagement with the screw, a series wound motor forrotating the gear to traverse the screw and spindle. into windingposition, and means for reversing the current through the armature ofthe motor while the direction of the current through the series fieldremains unchanged, thereby reversing the rotation of the gear towithdraw the spindle and strip the wound rolls.

6. In a web-winding machine the combination of a spindle about which theweb is wound, a slot in the spindle, means for threading the web throughthe slot, a series wound motor for rotatin the spindle, a shunt field onthe motor an means for energizing the shunt field and short-circuitingthe series field and the armature to apply a dynamic brake to the motorand arrest the rotation of the spindle with its slot in position toreceive the web.

7. In a web-winding machine the combination of a spindle about which theweb is wound, a screw on the outer end of the spindle, an axially fixedgear making l'lli threaded engagement with the screw, means for rotatingthe gear to traverse the screw and spindle into winding position, a slot1n the spindle, means for threading the web -wound motor for rotatingthe gear to traverse the screw and spindle into winding position, a slotin the spindle, means for threading the web through the slot, meansforarresting the traversing movement of the spindle whereby the spindleis rotated to wind a roll, a shunt field on the motor, means forenergizing the shunt field and shortcircuiting the series field and thearmature to apply a dynamic brake to the motor and arrest the rotationof the spindle, and means on the spindle for determining the angularposition of the spindle when the brake is applied, the slot inthe'spindle being thus held in proper position to receive the web.

9. In aweb-winding machine the combination. of a spindle aboutwvhich theweb is wound, a slot in the spindle, guides extending into the slot todirect the web therethrough, means for feeding the Web over the guidesand through the slot, means for rotating the spindle, and means for withdrawing the guides prior to the rotation.

10. In a web-winding machine the combination of a spindle about whichthe web is wound, means for rotating the spindle to wind a roll andmeans for automatically increasing the torque of the rotating means asthe diameter of the wound roll increases.

11. In a web-winding machine the combination of a spindle about whichthe web is wound, a series wound motor for rotating the spindle to winda roll,.and means responsive to the increasing diameter of the windingroll to increase the torque of the motor.

12. In a web-winding machine the combination ofa spindle about which theweb is wound, a series wound motor for rotating the spindle to wind aroll, a resistance in series with the motor, a movable arm bearingagainst the peripheral face of the winding roll, a contact member on thearm'making sliding contact with the resistance so'that as the rollincreases in size the current through the motor is increased andtherefore its torque.

13. In a web-winding machine the combination of a spindle about whichthe web is 'wound, a series wound motor for rotating the spindle to winda roll, a resistance in series with the motor, a swinging arm, means forholding the arm in contact with the winding roll, a contact member onthe arm making slidin contact with the resistance so that as the ro 1increases in size the current through the motor is increased andtherefore its torque, and means for manually varying the resistance.

14. In a web-winding machine the combination of a spindle about whichthe web is wound, a screw on the outer end of the spindle, an axiallyfixed gear making threaded engagement with the screw, a series woundmotor for rotating the gear to traverse the screw and spindle into andout of winding position, means for arresting the traversing movement ofthe spindle whereby the spindle is rotated by the motor to wind :1 roll,a slot in the spindle, means for threading the web throug the slot, ashunt field on the motor, a contact segment, and a cam driven by themachine for moving the contact segment first, to operate the motor totraverse the spindle inward, second, to energize the shunt field andshort circuit the series field and armature to apply a dynamic brake andmomentarily arrest the rotation of the spindle in position to receivethe web, third to continue the operation of the motor to rotate thespindle and wind a roll, and fourth to reverse the current through theseries field without reversing it through the armature to reverse therotation of the motor to wiltlhdraw the spindle and strip the wound ro E15. In a web-winding machine, the combination of a spindle about which aweb is wound, feedin rollers for feeding the web to the spindl e,winding rollers bearing against the peripheral face of the roll througfeout the winding operation, one of these ing fixed and co-operatin withthe feeding rollers to lead the web to t e spindle or the winding rolland one being movable, transversely movable journals for the spindle andmeans for directly rotating the spindle throughout the windingoperation.

16. In a web-winding machine the combination of a spindle about whichthe web is wound, means for traversing the spindle longitudinally intowinding position, and means for arresting the traversing movement, thetraversing means thereafter acting to rotate the s indle to wind a roll.

17. In a we winding machine the combination of a spindle about which theweb is wound, a slot in the spindle, means for traversing the spindlelongitudinally into winding position, means for arresting the traversingmovement, means for holding the spindle with its slot in position toreceive the web and means for threading th'lweb through the slot, thetraversing means acting after the web has entered the slot to "rotatethespindle to wind a roll.

18. In a welt-winding machine the combination of a spindle about whichthe web is wound, a slot in the spindle, means for traversing thespindle longitudinally into and out of winding position, means forfeeding the web to the spindle, guides for directing the web into theslot, means for inserting said guides into the slot prior to theintroduction of the web and withdrawing them subsequently. and means forrotating the spindle.

It). i In a web-winding machine. the combination of spindle about whichthe web is wound. means for rotating the spindle to wind a 'roll, andmeans eontnctint with the peri )herul face of the roll movable outwardas he roll increases in size for increasing the torque. of the rotatingmeans to maintain a constant tension on the web.

20. In a web-winding machine the combination of a spindle about whichthe web is wound. a series wound motor for rotating the spindle to winda roll, a resistance in series with the motor, and means responsive tothe increasing diameter of the winding roll for decreasing! theresistance in series with the motor so that the torque of the motor isincreased as the roll increases in size and the tension on the web heldsubstantially constant.

In testimony whereof we atlix our signatures.

NICHOLAS MARCALUS. ROSWELL H. RAUSCH.

CCERTIFICATE or CORRECTION.

Patent No. l, 669, 832.

Granted May 15, 1928, to

NICHOLAS MARCALUS ET AL.

It is hereby certified that error appears in the printed-specificationof the above numbered patent requiring correction as follows: Page 2.line 107, for the misspelled word "initated" read "initialed"; page 5,line 34, for the Word "bearing" read "bearings"; page 6, line 94, strikeout the words "is energized only when the" and insert instead the commaand words fixed contact 212. movable"; page 7, line 115, claim 5, forthe word "rolls" read "roll"; and that the said Letters Patent should beread with these corrections therein that the same may conform to therecord of the case in the Patent Office.

Signed and scaled this 19th day of June, A. D. 1928.

M. J. Moore, Acting Conmissioner of Patents.

18. In a welt-winding machine the combination of a spindle about whichthe web is wound, a slot in the spindle, means for traversing thespindle longitudinally into and out of winding position, means forfeeding the web to the spindle, guides for directing the web into theslot, means for inserting said guides into the slot prior to theintroduction of the web and withdrawing them subsequently. and means forrotating the spindle.

It). i In a web-winding machine. the combination of spindle about whichthe web is wound. means for rotating the spindle to wind a 'roll, andmeans eontnctint with the peri )herul face of the roll movable outwardas he roll increases in size for increasing the torque. of the rotatingmeans to maintain a constant tension on the web.

20. In a web-winding machine the combination of a spindle about whichthe web is wound. a series wound motor for rotating the spindle to winda roll, a resistance in series with the motor, and means responsive tothe increasing diameter of the winding roll for decreasing! theresistance in series with the motor so that the torque of the motor isincreased as the roll increases in size and the tension on the web heldsubstantially constant.

In testimony whereof we atlix our signatures.

NICHOLAS MARCALUS. ROSWELL H. RAUSCH.

CCERTIFICATE or CORRECTION.

Patent No. l, 669, 832.

Granted May 15, 1928, to

NICHOLAS MARCALUS ET AL.

It is hereby certified that error appears in the printed-specificationof the above numbered patent requiring correction as follows: Page 2.line 107, for the misspelled word "initated" read "initialed"; page 5,line 34, for the Word "bearing" read "bearings"; page 6, line 94, strikeout the words "is energized only when the" and insert instead the commaand words fixed contact 212. movable"; page 7, line 115, claim 5, forthe word "rolls" read "roll"; and that the said Letters Patent should beread with these corrections therein that the same may conform to therecord of the case in the Patent Office.

Signed and scaled this 19th day of June, A. D. 1928.

M. J. Moore, Acting Conmissioner of Patents.

